Backpack bag



FIG. 1 is a perspective view of BACKPACK BAG showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof, the broken lines showing straps illustrating the use of the Backpack and forming no part of the claim.

The broken lines shown on the surface of the Backpack throughout the views are understood to represent stitching. 

The ornamental design for BACKPACK BAG, as shown and described. 